RIO DE JANEIRO, March 11, 2014 /PRNewswire/ -- Oi S.A. (BOVESPA: OIBR3, OIBR4; NYSE: OIBR.C, OIBR) (the "Company") announces that its Annual Report on Form 20-F for the year ended December 31, 2013 was filed with the United States Securities and Exchange Commission, or SEC, on March 11, 2014. The report can be directly accessed at the SEC's website (www.sec.gov) or on our website (www.oi.com.br/ir).

Any investor or shareholder who wishes to receive a hard copy of the report, free of charge, may contact us by phone (+55 21 3131-2918) or by email at invest@oi.net.br .

Rio de Janeiro, March 11, 2014.
OI S.A.
Bayard De Paoli Gontijo
Chief Financial Officer and Investor Relations Officer

SOURCE Oi S.A.

Copyright 2014 PR Newswire

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